Cubasis - Cubasis is Steinberg’s streamlined, multitouch sequencer for the iPad.
PocketBand Lite - PocketBand Lite is a full-featured music composition environment for Android devices.
FamiStudio - FamiStudio is very simple music editor for the Nintendo Entertainment System or Famicom. It is designed to be easier to use than FamiTracker, but its feature set is also much more limited.
n-Track 8 - Audio and music recording, editing and mixing software for Windows, Mac, iOS and Android. Record your music easily from your computer or smartphone.
SunVox - SunVox is a small, fast and powerful modular synthesizer with pattern based sequencer (tracker).
ReLoop Loop DAW - ReLoop Loop DAW is a unique app that gives you the ability to create music your way – without worrying about the limitations of traditional music-making apps.